<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <!-- 最新版本的 Bootstrap 核心 CSS 文件 -->
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap.min.css"
        integrity="sha384-HSMxcRTRxnN+Bdg0JdbxYKrThecOKuH5zCYotlSAcp1+c8xmyTe9GYg1l9a69psu" crossorigin="anonymous">

    <!-- 可选的 Bootstrap 主题文件（一般不用引入） -->
    <link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/3.4.1/css/bootstrap-theme.min.css"
        integrity="sha384-6pzBo3FDv/PJ8r2KRkGHifhEocL+1X2rVCTTkUfGk7/0pbek5mMa1upzvWbrUbOZ" crossorigin="anonymous">

    <script src="http://code.jquery.com/jquery-2.1.1.min.js"></script>
    <!-- 最新的 Bootstrap 核心 JavaScript 文件 -->
    <script src="https://stackpath.bootstrapcdn.com/bootstrap/3.4.1/js/bootstrap.min.js"
        integrity="sha384-aJ21OjlMXNL5UyIl/XNwTMqvzeRMZH2w8c5cRVpzpU8Y5bApTppSuUkhZXN0VxHd"
        crossorigin="anonymous"></script>
    <title>demo</title>
    <style>
        .row{background-color: aquamarine;}
    </style>
</head>

<body>
    <div class="container">
        <!-- Single button -->
        <!-- <div class="row">
            <div class="col-sm-6 col-md-4">
              <div class="thumbnail">
                <img src="https://img2.baidu.com/it/u=240432223,1085272719&fm=253&fmt=auto&app=138&f=JPEG?w=400&h=400" alt="...">
                <div class="caption">
                  <h3>Thumbnail label</h3>
                  <p>...</p>
                  <p><a href="#" class="btn btn-primary" role="button">Button</a> <a href="#" class="btn btn-default" role="button">Button</a></p>
                </div>
              </div>
            </div>
            <div class="glyphicon glyphicon-home">房子</div>
          </div> -->
          
          <!-- <div class="row">
            <div class="col-md-6 col-sm-6 col-xs-6" style="background-color:azure;height: 50px;">
                <div class="col-md-6 col-sm-6 col-xs-6" style="background-color:azure;height: 50px;">
                    111111111111111111111
                </div>
                <div class="col-md-6 col-sm-6 col-xs-6" style="background-color:blue;height: 50px;">
                   2222222222222222222222
                </div>
            </div>
            <div class="col-md-6 col-sm-6 col-xs-6" style="background-color:blue">
            </div>
          </div>
          <div class="row">
            <div class="col-md-4" style="background-color:azure">.col-md-4</div>
            <div class="col-md-4" style="background-color:blue">.col-md-4</div>
            <div class="col-md-4" style="background-color:azure">.col-md-4</div>
          </div>
          <div class="row">
            <div class="col-md-6" style="background-color:azure">.col-md-6</div>
            <div class="col-md-6" style="background-color:blue">.col-md-6</div>
          </div> -->

          <div class="row" >
            <div class="col-md-9  visible-md-block visible-xs-block">11111111111111111111111111</div>
            <div class="col-md-3 ">22222222222222222222222222</div>
          </div>
        
    </div>

</body>

</html>